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« on: September 08, 2015, 11:26:11 PM »
kamalsahai
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bought two things
1.transformer 12volt 5 amp
2. nichrome wire

and joined electricity wire for input
 see picture
http://
setting hot nichrome wire foam cutter-help needed

but when i On my system it nichrome wire become red and melts

i think i have not installed dimmer kindly inform where to install dimmer or any suggestions
 kindly correct my hardware system
kp
cutter.jpg
setting hot nichrome wire foam cutter-help needed
* cutter.jpg (53.25 KB, 600x800 - viewed 1248 times.)
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« Reply #1 on: September 09, 2015, 12:17:45 AM »
madaquif
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dimmer should be installed in AC mains...red wire
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« Reply #2 on: September 09, 2015, 02:01:33 PM »
kamalsahai
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give ur phone number

kp
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« Reply #3 on: September 09, 2015, 09:33:21 PM »
SI74
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Hi, you need not buy any transformer for this. I used my laptop' s charger and connected it to the " E" string of guitar. Works perfectly.
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Re: setting hot nichrome wire foam cutter-help needed
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« Reply #4 on: September 09, 2015, 09:52:10 PM »
K K Iyer
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@madaquif,
Quote from: madaquif on September 09, 2015, 12:17:45 AM
dimmer should be installed in AC mains...red wire

Red wire?
You mean positive?
Is there one in AC?
Come on Aquif, let us not spread wrong ideas!
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« Reply #5 on: September 09, 2015, 10:08:33 PM »
johnywalker8pm
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Tata Sky power adapter works too with E string of guitar.
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« Reply #6 on: September 09, 2015, 10:14:32 PM »
K K Iyer
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So does a lipo (2s or 3s)
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« Reply #7 on: September 09, 2015, 11:30:47 PM »
kamalsahai
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thanks every body

kp
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« Reply #8 on: September 10, 2015, 04:13:54 PM »
VintageFlier
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I would not use a LiPo for this!

Risk of damage to a costly LiPo and even worse, of Battery Fire.

This is because the chances of an accidental short-circuit are too high with these set-ups.
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« Reply #9 on: September 11, 2015, 02:58:38 AM »
nitesh47
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"I m not afraid of storm' m learning how to sail"
Hi kamal,
you are going in the right way, transformer is perfect for cutting as it heats instantly after switch on. Few things to improve as mentioned above use guitar E string, and yes dont forget to add resistant on both the end of the wire.
I am using the transformer of an old UPS, aprx 5amp 14v, E string
working fine.
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« Reply #10 on: September 11, 2015, 03:46:42 PM »
kamalsahai
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thanks nitesh47

nichrome wire is too expensive, now i am looking for element wire

furhter if u know any online cheap source of nichrome wire let me know

kp
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« Reply #11 on: September 11, 2015, 08:29:48 PM »
SI74
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But Laptop charger also heats up the E string instantaneously. I asked for the price of such  a transformer( built in a box with proper switch and insulation ) , it was 700rs. So I thought of using a charger instead.
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« Reply #12 on: September 11, 2015, 09:30:49 PM »
nitesh47
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"I m not afraid of storm' m learning how to sail"
Bro u r right, laptop charger is  suitable.
 he already bought that transformer if he havnt then he could use the laptop charger.
regards nitesh47...
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